Shopping Cart

Your cart is empty.

Your cart is empty.

Bloc Loc~12.5' Half Square Triangle Ruler, Acrylic Ruler

Free shipping on orders over $29.99

$84.40

$ 38 .99 $38.99

In Stock

About this item

  • Instant Precision: Bloc Loc's 12.5" HST ruler locks onto seams for immediate placement, offering unparalleled control and trimming at a remarkable speed.
  • Seam-to-Corner Control: Ensure each seam gracefully ends in the corner, eliminating the need for adjustments and perfecting your quilting projects.
  • Versatile Trimming: Trim quarter-square triangles, birds in the air, y-blocks, LeMoyne Star, double windmill, hidden square units, and more with ease.
  • Multi-Sized Mastery: This ruler is multi-sized, trimming in 1/8" increments, providing flexibility for various quilting designs and patterns.
  • Innovative Channel Technology: Bloc Loc introduces revolutionary channel technology, guaranteeing precise "square up" of half-square triangle blocks, eradicating slipping and ruler rock entirely.
  • Ruler Rock Eliminated: Experience stable and rock-free quilting sessions, thanks to the ingenious design of Bloc Loc rulers.
  • Crafted for Accuracy: The 12.5" HST ruler is expertly crafted from high-quality acrylic, ensuring durability and reliability in your sewing supplies.


Elevate your quilting mastery with the Bloc Loc 12.5" Half Square Triangle Ruler – a revolutionary tool that combines precision, speed, and stability. Crafted for perfection, this acrylic ruler transforms quilting projects with its innovative design. Unleash the power of precision with the Bloc Loc 12.5" Half Square Triangle Ruler – where innovation meets perfection in quilting.


Marsha A.
Reviewed in the United States on December 7, 2023
You could certainly can do the same thing with a lesser square ruler and grid, but these are so accurate and easy to use. My only gripe is why do they have to cost a fortune.
Colleen Evans
Reviewed in the United States on January 8, 2023
This thin, breakable acrylic ruler arrived in only a poly-mailer envelope. I couldn't believe that there was no packaging at all to protect it from damage in the shipping process. I have returned it as two of the 4 corners were chipped, and I'm surprised there wasn't further damage as the envelope was badly cut during shipping. This ruler is for precision rotary cutting while quilting, and was unusable as the two chipped corners would snag the fabric, and would give a poor cut if the rotary cutter caught on it. I hope this feedback gets to the supplier who packaged it for shipping.
Linda T. Williams
Reviewed in the United States on January 5, 2023
I work with large squares thus it was wonder To find this in the 12.5 size
Donna Struntz
Reviewed in the United States on October 4, 2022
Will now make many flying G without issues
Dkwat04
Reviewed in the United States on August 14, 2021
I have purchased nearly every block lock ruler because they are very accurate and start at the half square when you have a half square shaped perfectly. The other rulers work just as well especially the log cabin styles. I have purchased a 2, 3, 4, 5, 6, 8 and 12 in square and all of the log cabin rulers. I just can’t do without them.
Mary
Reviewed in the United States on August 2, 2020
After you get the hang of how it works, does a great job. Little on the spendy side.
Red Sock Mama
Reviewed in the United States on July 21, 2018
Makes squaring up your half square triangles easy...but you have to learn to use it. I recommend youtube!
S. Taylor
Reviewed in the United States on November 13, 2018
I have many bloc loc rulers. They are the best to make accurate half square triangles.